*{padding: 0;margin: 0;font-size: 14px;font-family: "微软雅黑";}
input{width: 88%;height: 50px;background: rgba(0,0,0,0.7);border-radius: 10px;color: white;}
body{width: 100%;height: 100%;}

#login_bg{width: 100%;height: 100%;position:fixed; top: 0; left: 0; z-index: -99;}
#login_bg img{width: 100%;height: 100%;}

#userNikename,#password,#password2,#userName,#userPhone,#userSchool{position: relative; left: 6%; width: 88%;margin:1.5% auto; text-align: center; }
#zhuce{width: 70%;height: 50px;background: #ffcc33;position: absolute;left: 15%;border-radius: 30px;font-size: 18px;
padding:0;border: none; text-align: center;}
#zhuce:focus{outline: none;}
#zhuce:hover{background: #ffcc00;}

#back{width: 100%;height: 50px;background: rgba(100,100,100,0.8);color: white;font-size: 28px;line-height: 50px;
display: inline-block;}
#logo{height: 100px; width: 100%;}


#error_box {
    height: 40px;
    width: 350px;
    margin: 0 auto;
    line-height: 40px;
    color: #fc4343;
    opacity: 0.9;
    text-align: center;
    font-size: 18px;
}